SpecSeal Ready Firestop Grommet

Specified Technologies

For a single cable or small multi-cable bundles penetrating through one- and two-hour fire-rated gypsum board walls, eliminating sleeves, sealant and putty. Single or small multi-cable penetrations can be time consuming, expensive and messy. Ready Firestop Grommets make membrane and through-penetrations through rated gypsum board walls a snap. Just drill a hole, run your cable(s), snap the grommet around the cable(s) and press it into the wall. Use a single grommet for single-sided (membrane) penetrations or drill a hole through both sides of the wall and install grommets back-to-back for through-penetrations.

The Ready Firestop Grommet is available in two sizes. RFG1 for a cable or bundle of cables up to 0.27 in (7 mm) O.D or RFG2 for up to 0.53 in (14 mm) O.D. The grommet is molded from a premium grade plenum-rated polymer. A soft foam inner core conforms to the cable(s) to form a tight seal. The cable(s) is smoke-sealed and firestopped in just minutes with no sleeve and no sealant or putty required!


  • Quick to install - two-piece grommet snaps together for an easy installation
  • Economical - eliminates sleeves and the need for putty or sealant
  • Split design - can be used with previously installed cables
  • Made with Ultem premium, plenum-grade material - exceptional flame and heat resistance
Anixter No. Manufacturer No. Description
415355 RFG1 For cable penetration up to .27 in. (7 mm) OD
435113 RFG2 For cable penetration up to .53 in. (14 mm) OD